Wallpaper pasting and trimming machine



Det.A 14, 1952 w. c. RENNE 2,613,632

WALLPAPER PASTING AND TRIMMING MACHINE Filed Sept. 18, 1950 4Sheets-Sheet 1 Oct. 14, 1952 w. c. RENNE 2,613,532

WALLPAPER PASTING AND TRIMMING MACHINE:v

Filed Sept. 18, 1950 4 SheetsSheet 2 LME;

Oct. 14, 1952 w. c. RENNE 2,613,632

WALLPAPER PASTING AND TRIMMING MACHINE Filed Sept. 18, 1950 4SheetS-Sheet 5 vl. zl

IN VEN TOR. 14//7//6/77 en/2e 42 2A? y im un Fzy.. I INVENTOR.

l/l//Y//am 5. few/7e BY l Patented Oct. 14, 1952 Veri-cs WALLPAPERPASTING AND TRIMMING MACHINE William C. Renne, Kansas City, Mo.

Application September 18, 1950, Serial No. 185,481

28Claims. (Cl. 118--38) The invention relates to Wallpaper machines ofthe type wherein the selvage, or edge portions of the paper, are trimmedand paste applied to the paper as the paper is drawn from the roll inwhich wallpaper is customarily furnished. In machines of this type, theprincipal difficulty has been in a means for causing the paper to runtrue as it is drawn from the roll in order that vthe edges will be cutabsolutely true and straight. l have found that while paper may be drawnfrom a roll straight, the operations of trimming and pasting often causea side drag on the paper, pulling it out of line. This may be caused bysuch conditions as lack of parallelism between the axis of the paperroll and the axis of the pasterollers, unequal pressure between thepaperv and paste rolls 'at opposite sides of the paper, unequalpressureof the cutting discs against the cutting roller at opposite sides oftheV paper, or lack of parallelism between the cutting discs and cuttingrollers. While the side slippage of the paper may be initiallynegligible, it is cumulative and becomes substantial when a long lengthof paper` is withdrawn. Moreover, the stresses set up in the paper bythe side slippage thereof eventually l cause the paper to slip back intoits true or straight position. This causes objectionable offsets orholidays` in the edges of the paper, which render its unsuitable foruse, particularly in the class of papering known as butt-work, whereinadjacent strips of paper are laid edge to edge.

The principal object of this invention is, therefore, the provision of awall paper machine of the class described wherein the course of thepaper is dominated by the roll from which it is drawn, and wherein thepasting and trimming operations do not cause a side drag on said paper.

Another object is the provision of a wallpaper machineof the classdescribed which is readily adjustable to handle paper of any standardwidth.

A further object is the provision, in a wallpaper machine of the classdescribed, of a pasting roller arrangement which is readily adjustablein length whereby paste will not be applied to the extreme edge portionsof the paper. This prevents paste 'from being applied to the cuttingroller, and thence transferred to the front or pattern side of thepaper. Y

A further object is the provision of adjustable means for closelyregulating the amount of paste applied to the paper.

A still further object is the provision of convenient means formeasuring both the width of the paper and the length of the paperwithdrawn.

Other objects are simplicity and economy of construction, ease ofoperation requiring little skill, portability, ease of maintenance, andadaptability for use with any type of paper.

With these objects in view, as well as other objects which will appearin the course of the specification, reference Will be had to thedrawing, wherein:

Fig. 1 is a front elevation of a wallpaper machine embodying the presentinvention, partially broken away.

Fig. 2 is a right side elevation of the device as shown in Fig. 1.

Fig. 3 is an enlarged planview of the device, removed from itssupporting stand.

Fig. 4 is an enlarged sectional View taken on line IV--IV of Fig. 3.

Fig. 5 is an enlarged left end elevation of the device as shown in Fig.3.

Fig. 6 is an enlarged fragmentary section taken on line VI-VI of Fig. 5.

Fig. 7 is a fragmentary section taken on line VTI-VII of Fig. 5.

Fig. 8 is a fragmentary section taken on line VIII-VIII of Fig. 4.

Fig. 9 is a fragmentary section taken on line IX-IX of Fig. 4.

Fig. 10 is a foreshortened fragmentary section taken on line X-X of Fig.5.

Fig. 11 is a fragmentary section taken on line XI-XI of Fig. 10.

Fig. 12 is a reduced section taken on line XII- XII ofV Fig. 4, withparts omitted.

Fig. 13 is a fragmentary enlargement of the central portion of Fig. 12,with parts broken away.

Fig. 14 Ais an enlarged fragmentary section taken on line XIV-XIV ofFig. 12. l

Fig. 15 is a fragmentary section taken on line XV-XV of Fig. 14.

Fig. 1.6` is an enlarged fragmentary section taken on line XVI- XVI ofFig. 12.

Fig. 17' is an enlarged fragmentary section taken on line XVII-XVII ofFig. 12.

Fig. 18 is an enlarged, foreshortened elevational View of the pasteWiper shown detached from the machine. y

Like reference numerals apply to *similar-A parts throughout the severalviews,v and the numeral 2 applies to a stand including a pair of spacedapart upright front legs 4 and 6 joined rigidly at their upper ends by apair of horizontal planar members 8 which may serve as shelves forholding small tools. Legs 4 and 6 are also joined by cross braces IIJintermediate their ends. A leg I2 is pivoted at its upper end to each oflegs 4 and 6 at I4, and slopes downwardly and rearwardly to engage thefloor. A support bar I6 is pivoted at I8 to each of legs 4 and 6adjacent the lower end thereof, and extends upwardly and rearwardly,being secured to the adjacent leg I2 by a bolt 20 'or other fastener attheir point of intersection thereby rendering the stand rigid. Eachsupport bar I6 is provided at its upper end with an outwardly extendingpin 22, for a purpose herein-` after appearing. It is apparent that byremoving bolts 20, legs I2 and support bars I6 may be foldedsubstantially coplanar with legs 4 and 6 for transportation or storage.A treadle 24 is pivotally connected to leg 4 at 26, and extends acrossthe front of the stand. It is adapted to operate the cut-off blade ashereinafter described.

A paste tank 28 is carried by stand 2, and itself carries all of theoperating parts of the machine with the exception of treadle 24. Saidtank is of elongated rectangular form, open at the top, and has a bottom30, front wall 32, rear wall 34, and end walls 36 and 38. Mountingplates 40 are secured to the front wall 32 and extend above the upperedge thereof. The upwardly` extended portions thereof are perforated at44 to receive screws 42 or the like for mounting the tank on therearward edges of legs 4 and of the stand. As best shown in Fig. 4 and5, mounting plates 40 are spaced apart from front wall 32 by spacers 46,in order to permit the paste roller carriages to be moved freely alongsaid front wall as hereinafter set forth. End walls 36 and 38 of thetank ,are of irregular shape, having portions 48 extending rearwardlyfrom rear wall 34 and portions 50 extending upwardly from rearwardextensions 48. An outwardly extending pin 52 is fixed in each of the endwalls 36 and 38 adjacent the loweredge thereof. A bag 54 preferably madeof fabric is supported, open end up, on pins 52 and pins 22 xed in theupper ends of support bars I6, as shown in Figs. 1 and 2. The open mouthof said bag is thereby disposed beneath the rearward portion of tank 28,and is adapted to receive the wallpaper trimmings.

In general, the wallpaper roll 56 is disposed horizontally over tank 28,and is urged downwardly against paste roller 58 carried rotatably in thetank. The paper from said roll is lead rearwardly around a cuttingroller 60 against which cutting discs 62 are urged.

The paste rollers 58 are cylindrical in form, having a rubber coating64, the outer surface of which is roughened as indicated in Fig. 3 tocarry an adequate amount of paste from'the tank to the paper and toprovide good traction on the paper. The rollers are disposed forrotation on horizontal axes disposed longitudinally of tank 28, and aredisposed substantially within said tank with the upper portions thereofextending above the top of the tank. Each of said rollers is carried bya carriage 64 comprising a planar sheet of metal disposed against theinner surface of front tank wall 32. At its upper edge each carriage isprovided with outwardly bent hooks 65 which slidably engage the upperedge portion of said tank wall, whereby the carriages may be movedlongitudinally of the tank. As best shown in Figs. 4, 8, and 9, eachcarriage 64 is provided with inwardly bent tabs 66 and 68 respectivelyat the upper and lower edges thereof. A substantially vertical rod 'I0is disposed for vertical axial movement in a perforation 'I2 formed inupper tab 62, and is threaded to receive a nut 'I4 disposed against theupper surface of said tab, whereby said rod may be adjusted vertically.As shown in Figs. 8 and 4, all but two of rods 16 terminate intermediatetabs 66 and 68, and a spring wire I6 affixed to the lower end of eachrod extends downwardly through a perforation 'I8 formed in lower tab 68.As shown in Fig. 8, the rods 'I6 of two of the carriages are providedwith rigid downward extensions which are carried foi oscillatory andaxial movement in the perforations of tabs 68.

Fixed to each rod 'I0 is a rearwardly extending horizontal rod 82, tothe rearward end of which is fixed a yoke 84. As best shown in Fig. 9,each yoke has a pair of rearwardly extending parallel arms 86, therearward end portions of which are bent inwardly to form coaxial stubs88 which are journalled in spiders 80 of a paste roller 58,Y wherebysaid roller is supported for axial rotation. Thus each paste roller hasa caster action about rod 10 as an axis, and will accurately follow thecourse of the paper against which it is urged.

Any transverse dragof 'the paste rollers on thev paper, which wouldcause an off-course tendency, is eliminated. Rods 82 supporting theyokes are offset alternately upwardly and downwardly, as shown in Figs.4 and 8, and the paste rollers are offset alternately forwardly andrearwardly, to prevent interference between the yokes and to permit therollers to be spaced closely. Also for this purpose, the yoke arms 86and spiders 90 are spaced inwardly from the ends of the rollers. Thepaste rollers are interchangeable, and'as shown in Fig. 3, are ofdifferent widths. In this manner, the rollers may be arranged to providean effective length suitable for any width of paper. Of course only therollers in actual contact with the paper will function at any one time.As shown in Figs. 4 and 10, the total effective length of the pastingrollers is adjusted to be somewhat less than the total width of thepaperlv but` greater than the trimmed width. In this manner paste is notapplied to the extreme edges of the paper, and hence will not bedeposited on the cutting roller 50 and thence transferred to the face ofthe paper. The two paste rollers supported by the rigid caster rods'I0-80 are disposed respectively at opposite edges of the paper,l

and afford a base against which the paper roll may be urged. Nuts '14associated with said rigid.

caster rods may be adjusted to bring the base provided thereby intoaccurate parallelism with the cutting roller. v

The resiliently supported caster rods 'I0-'I6 serve to urge theintermediate paste rollers up wardly against the paper roll. Thepressure of said intermediate paste rollers against the paper roll maybe equalized by means of nuts 14.

The paper roll 56 is carried by a pair of coaxial shafts 92 extendinglongitudinally of tank 2 8,

above said and just forward from paste rollers 58, each shaft extendingfrom one end of the tank to a point adjacent the center of the tank. Asbest shown in Fig. 8, each shaft 92 is provided at its inner end with areduced portion 94 carried for oscillatory and axial sliding movementinv a bracket 96 which extends downwardly and is rigidly attached totank bottom 38. The outer end of each shaft 92 extends slightlyoutwardly. from the end of the tank, and is rotatablyA at? tached to the`free end of a leaf spring 98, the. opposite end of which rigidlyattached to the adjacent end wall of the tank at |08. Said leaf springs'urge shafts 92 outwardly in .opposite directions. A second leaf spring|02 is rigidly at-l tached at-one end to each of the end walls 3E and,38at |04, and is attached adjacent its free end to leaf .spring 98. Ashouldered screw |06 is carried rotatably in the free end portion ofeach spring |02, and is threaded into a boss |08 formed on the adjacentend wall as shown in Fig. 7. Itis evident that by turning screws |06,shafts 92 .may .be adjusted axially.

VCarried pivotally and for slidingmovement on each of shafts 92 is anarm ||0, disposed radially to saidl shaft and extending upwardly and.rear.- wardly therefrom. As best shown in Fig. 1l, a latch lever H2 is-pivotally secured to each arm ||0 intermediate its ends by means of abolt ||4 xed fin said arm. Said lever is lprovided with atang H6 forengaging a flattened'side H8 of shaft S2 with sufficient friction toprevent arm |I0 from sliding along saidY shaft accidentally and to locksaid arm against pivotal movement on said shaft. Each latch lever H2 isprovided with a handle portion |28 by means of which tang H6 may bemoved to and from its operative position, and a springt|22 is disposedabout bolt H4 and has an arm |24 extending outwardlyto engage handle`|24 vand resiliently urge said latch lever to its operative position.Each arm H0 is provided adjacent its rearward end with an outwardlyextending fixed rod |26, which serves as a handle whereby the arm may bemanually manipulated.

The wallpaper roll 56 is supported between the two 'arms H0 in a mannerbest shown in Fig. 10. A thin rod |28 is adapted toA be inserted -ineach end -of the roll with the end portion thereof-projecting outwardlyfrom the roll. Said rods are thin enough to be inserted easily even in aroll which is mashed ormisshapen from packing, and may be of sufficientlengthto substantially meet at the center of aroll of the narrowestpaper which may be used. Each of said rods carries a plurality of springwiresv |30 at spaced intervals therealong; Said wires are spacedperipherallyaboutfthe rods, each being attached imly atone endto saidrod and extending longitudinally of .said rods toward the outer endsthereof. -The-freeends ofy said spring wires aresprung outwardly toengage the paper, and` serve the functions of centering and securingtherods in thev paperroll, and also in some degreereforming rolls-whichhavev been` mashed in packing. YAdjacent its outer end each rod |28 hasYalreduced neck portion |32 on which a centrally 'perforated disc |34'is rotatably mounted. Said kdiscs engage thelends of the rollandmaintain them normal tothe rods |28. The vouterends of rods |28 larerounded, and mounted .in rounded sockets |36 formed in the confronting`faces of arms HU adjacent the `free ends of said arms. This mountingpermits a degree of pivotalmovement between rods |28 and arms H0 for .apurpose whichwill appear presently. v y

. rhe 'wallpaper roll is urged resiliently against paste rollers .58 bythe following mechanism. Anrfarm-:I38 is secured rigidly to each ofshafts 92 .adjacent the inner end thereof, as best shown in Fig.. 8,`being disposed radially to said shafts and extending upwardly andforwardly therefrom;` IAxconnecting bar V|48 extends between the, freeends offsaid arms, and is connected end of the adjacent lever |52.

thereto for universal pivotal movement by means of screws |42. A helicaltorsion spring. |44 is disposed about bracket having one ondvsecured insaid bracket and its opposite end extended as at |46 to project througha looselyt'- ting hole |48 formed in connecting bar '|40 midway betweenarms |38. Said spring urges arms |38, shafts 92, and arms |0 in aclockwise direction as viewed in Fig. 4, thereby urging paper roll 56against paste rollers 58. It will be seen that the single spring |44turning both of shafts 92, will, by the rocking action of connecting bar|40, transmit equal forces to both of arms l l0 and to theopposite edgeportions of the paper. Since unequal pressures at opposite sides of thepaper wouldV cause an unequal compression of the paper, and since thiswould cause uneven drager strain on the paper at its opposite edgeswhich would result in a cumulative off-course tendency ofthe paper, thisis an important feature in causing the pa-per to run true. Also,unevenness ofl the roll of paper, such as caused byV flattening oftherolll or uneven winding thereof, which would-nor-v 4 mally result inintermittent inequalities of pres-v sure at opposite sides of the roll,are compensated instantly and automatically by the rocking action ofconnecting bar |45. The pivotal mounting of rods |28 in arms Il!) isnecessary in order that the downward pressure of each arm I|0 will beexerted only at the extreme end of the roll, and not transmitted throughthe roll, Aand to permit the -arms H0 to move unequally due to lunevenconfiguration of the roll. The distance between arms H8 may be adjustedfor paper rolls of different widths by manually releasing latch leversH2 and sliding the arms along shafts 92. Fine adjustments may be made byturning screws |05, which move shafts 92 longitudinally as prevouslydescribed. Arms |38 are flexible to permit this movement.

Paper from roll 56 is lead rearwardly therefrom and passedaround cuttingroller 60. Said roller is cylindrical and disposed parallel to paperroll 56. It is formed of a metal 'such as brass which is suiciently softto prevent damage to the cutting discs, hereinafter described. `It isprovided at its ends with stub axles |50, andeach lof said axles isrotatably journalled in a lever |52. Each of said levers is pivotedadjacent one end at |54 to the inner face of upward extension 50 of tankend walls 38 and 38, and extends'forV wardly and downwardly therefrom.Cutting roller axles |50 are journalled in said levers at a point spacedapart from pivots |54, whereby rpivoting said levers will move roller 50to and from cutting discs 62. The roller is moved Vupwardly away fromthe discs when it is desired to thread the paper therebetween. When thelevers are moved downwardly to move the roller against the cuttingdiscs, they may be secured by means of latches |58 secured to end walls35 and 38. Each of said latches comprises a spring strip strip fixed toand extending above end walls 35 and 38, and provided at its upper endwith an inwardly projecting tang |58 adapted to engage releasably theforwardly extended By forcing latch members |55 manually outwardly,levers |52 are freed'for" pivotal movement.

Extending between and rigidly attached to levers |52 are a pair of bars|60 and |62. Said bars are planar and disposed above and at the rearwardedge of cutting roller (i8, `and extend parallel thereto. These barshave-several functions. They, together with levers |52. form a rigidpivotal frame for roller 60.- They are vertically spaced apart as bestshown in Fig. 4, thereby providing a slit |64 therebetween over whichthe paper |66 passes as it is led upwardly from roller 60. vSaid barsthus provide a backing for the paper as the cut-off blade, describedhereinafter, enters slit |64. Bar |60 serves as a mounting for slittingknives |68. As best shown in Fig. 4,; each of said knives is mounted ona spring clip |10 which ts clampingly over the edge of bar |60, and theknife projects rearwardly into the path of the paper |66 to slit itlongitudinally. Said knives are adjustablyslidable along rod |60, and ofcourse any desired number of them may be used.

The cut-off knife includes a bar |12 extending the full length of thetank 28 parallel to roller 60, in which is mounted a forwardly extendingblade |14, the cutting edge of which is serrated as shown in Fig. 3 andwhich extends substantially the full length of bars |60 and |62. Saidcut-off bar and blade are carried on a shaft |16 which is parallel tobar |12 and which is carried for axial rotation in notches |18 formed inthe lower edges of rearward extensions 48 of end walls 36 and 38 of thetank, as best shown in Figs. 4, 5, 12, and 16. Said shaft is connectedto bar |12 by radial arms |80 at the ends of said shaft, and a centralarm |82. Shaft |16 is re tained in notches |18 by a pair of spring clips|84 disposed adjacent end walls 36 and 38. As best shown in Figs. 12 and16, each of said clips comprises a length of resilient material fixed atits upper end to the outer surface of rear wall 34 of the tank, andformed at its lower end to present a hook |86 adapted to engage shaft|16. A screw |88 is fixed to rear wall 34 and extends outwardly througha hole |90 formed in each spring clip, and a nut |92 is threaded on saidscrew against the outer surface of said clip. Said clips are normallyurged resiliently outwardly out of engagement with shaft |16, but may bedrawn into engagement with said shaft by means of nuts |92." Byloosening nuts |92, the entire cut-olf knife assembly may be detachedfrom the remainder of the machine.

When blade |14 is pivoted forwardly about shaft |16, it enters slot |64between bars |60 and |62 to cut off the paper as previously described.Said blade is urged resiliently to its inoperative position by a helicalspring |94 carried in a bracket |96 xed to rear wall 34, said springbeing extended to engage central arm |82 to urge blade |14 rearwardly.Said blade is operated by an arm |88 fixed to one end of shaft |16 andextending forwardly therefrom adjacent the outer surface of end wall 38,as best shown in Fig. 2. The upward movement of said arm is limited by apin 200 xed in end wall 38. A flexible cord 202 or the like is tied atone end to arm |98 and at its opposite end is attached to the free endof t-readle 24 at 204. Thus the operator can operate thecut-ofll bladeby means of foot pressure on treadle 24.

As the paper passes under cutting roller 60, it is contacted by a pastewiper 206, best shown in Figs. 4 and 18. Said wiper extends the fulllength of said cutting roller and is parallel thereto, comprising anelongated strip of sheet rubber or other resilient material. One edgethereof is bound in a sheet metal channel 208, and the other edgethereof has a plurality of regularly spaced V-shaped notches 2|0.Channel 208 is provided at its ends with stub shafts 2|2 which arejournalled in end walls 36 and 38. The

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free .edge portion of the 'wiper bears resiliently against roller 60, oragainst the paper on said roller. A resilient Wire 2|4 is xed in each'of stub shafts 2 I4 and extends radially thereto 'ad jacent the outersurface of the adjacent end wall. The free end portion of said springwire is inserted selectively in any one of a plurality. of notches 2|6formed in a bracket 2|8 fixed to the outersurface of said end wall, asbest shown in Fig. 5. It is evident that as wiresj2|4 are moved intodifferent notches 2|6, stub shafts 212 and wiper 206 will be caused tobear against roller 206 with greater or less pressure, and that thepoint of contact of said wiper with the roller will be nearer or fartherfrom the edgev of the wiper. Because of the V-shape of the wiper notches2|0, this causes the line of contact of the wiper on the roller to bevariable-from continuous to a line which is interrupted by the fullwidth of the notches. In this manner, the amount of paste left on thepaper may be closely regulated. v

The two cutting discs 62 are carried by two coaxial shafts 220, as bestshown in Figs. l2` and 15. Said shafts are parallel to roller 60adjacent the outer surface of rear wall 34, and each shaft extends froma point adjacent the center of tank to the end wall of the tank. Thethreaded outer end of eachshaft is journalled in the rearward extension48 of the associated end wall for rotary and longitudinal movement, anda knurled nut 222 is threaded on the extended end of each shaft, andbears against the outersurface of the associated end wall. Each shaft220 is journalled adjacent its inner end in a bracket 224 fixed to rearwall 34, for rotary and longitudinal movement. Intermediate brackets 224and end walls 36 and 38, shafts 220 are flattened to present arectangular cross-section. Mounted for adjustable movement along each ofshafts 2,20 is a carriage 226 comprising a planar sheetoi' metaldisposed against the upper surface of shaft 220 and rebent at itsforward edge to form a channel 228 for slidably engaging` the forwardedge of said shaft. At its rearward edge, carriage 226 is provided witha depending'lug230 through which is threaded a set screw 232 adapted toengage the rearward edge of shaft 220 to secure the carriage inposition. r A bracket 234 is connected to each carriage 226 for pivotalmovement on an axis at right angles to shaft 220 by means of pivot pins236, and extendsupwardly therefrom. A cutting disc 62 is mounted forrotation at the upper end of each of said brackets by means of ballbearing 238. the axis of said bearing being at right'angles to thepivotal axis of bracket 234. `The cutting discs bear against therearward side of cutting roller 60, as best shown in Fig. 14, to trimthe selvage therefrom. It will be seen that each cutting disc iscastered on pivot pins 236, which are disposed on an axis substantiallyat right angles to a tangent to the cutting roller at the point ofcontact of the cutting discs therewith, whereby said cutting discs willfollow the course of the paper accurately, and will therefore not createany transverse drag on the' paper.'

A plate 240 of sheet metal is supported above each cutter disc 62 bymeans of a rod 242 fixed to the associated carriage 226. These platesserve as protectors against accidental injury of the hands on thecutting discs, and also as mountmgs for deflector strips 244. Each ofsaid deflector strips comprises a strip of resilient material xed at oneend to plate 240 and curving forwardly and downwardly' to bearresiliently against cutting roller 6E) just outwardly from theassociated cutting disc 62. Said deflector strips serve to deflect theedge portions 246 cut from the paper outwardly from roller 66 andvdownwardly into bag 54 as shown in Fig. 4. It is of course apparentthat when the cutting discs are adjusted by moving carriages 226 alongshafts 220, deflector strips 244 will move'therewith and will .alwaysremain in proper relation thereto.

Shafts 22B are torsionally loaded to urge cutting discs 62 againstroller 50 by the mechanism best shown in Figs. 4, 12, and 13.Intermediate brackets`224, the inner end portions of shafts are bentdownwardly to form parallel spaced apart arms 248, and rebentoutwardlyto form arms 256 parallel to shafts 220. An arm 252, generallyvertically disposed, is attached at its upper end to rear wall 34 bymeans of a leaf spring 254, whereby said arm may be moved to and fromsaid rear wall. Said arm may be moved to and from said rear wall by ascrew 256 threaded horizontally through the lower portion of arm 252 andbearing at its forward and against rear wall 34. Said screw is manuallyoperable. Arm 252 is disposed midway between arms 248 of shafts 226, anda rocker beam 256 is pivoted at its midpoint to the -lower end of arm252 by means of 4pivot pin`268, said pivot pin being disposedlongitudinally of arm 252. Rocker beam 258 extends horizontally in bothdirections from said pin, and is provided at` each end withan upturnedtab 262 perforated as at 264 to receive respectively y the arms 260 ofshafts 220, as best shown in Fig.

13. Arms 250 are free to move longitudinally in said perforations, andto pivot universally to a limited degree therein. It is evident thatwhen screw 256 lis advanced to move arm 252 rearwardly from rear wall84, rocker beam 258 will transmit equal torsional forces to both ofshafts 22|), urging them in a counter-clockwise direction as viewed inFig. 4 to press cutting discs 62 against roller 60. The rocker beam alsocom.- pensates for any inequality in the diameters of the cutting discs,and for the fact that either or both cutting discs may not be exactlyround, dueto uneven' wear and sharpening thereof. Any' change of cuttingpressure of either disc will be transmitted instantly to the other discthrough the rocker beam.

'-A tension spring 266 extends between and interconnects arms 24B ofshafts 220J thereby urging said shafts longitudinally inwardly. Byturning knurled nuts 222 at the outer ends of said shafts, said shaftsmay be moved longitudinally to malienne adjustments of the position ofthe cutting discs relative to the paper.

r The positioning of the cutting discs relative tothe paper, andaccuratemeasurement of the widthof the paper, is facilitated by a measuringtape-268 disposed above and parallel to bar |60. Said tape is pliable,land has a rubber band 210 or other elastic member secured to one endthereof and engaging a pin 212 fixed to and extending upwardly from bar|60 at the left end thereof.. VThe opposite end portion of said tape iswound on a reel device 21,4 best shown in Fig. 17. Said reel devicecomprises a flat attaching member 216 perforated at one end to iit overa pin 21B fixed to and extending upwardly fromr the right end ofvbar|60, a yoke member 280 of U-shape connected to member 216 by bolt 282, abolt 284 extending between the arms of said yoke and having a nut 286 bymeans of which the yoke armsmay be urged together, and a tubular hub 288carried rotatably on screw 281| between the yoke arms, on which tape 268is wound. Nut 286 may be tightened to urge the yoke arms against theends of hub 288 to prevent rotation thereof. By paying out any desiredamount of tape desired, the tape will be moved longitudinally by rubberband 210 to bring the end of the tape accurately into alignment with theedge of the paper.

The length of the paper may be measured by a measuring device best shownin Fig. 5. A stub axle of cutting roller E0 is extended outwardly fromthe left end of tank 28, and a roller 288 is xed to the extended endthereof. Roller 28B is of precisely the same diameter as the cuttingroller. An arm 292 is pivotally connected to the left end wall 36 of thetank by means of a pivot pin 294 fixed to said end wall, said pivotbeing parallel to the axis of roller 290. Said arm extends rearwardlyfrom its pivot, and carries a roller 295 at its free end for rotation onan axis parallel to pivot 292. A measuring tape 298, formed in a loop ispassed around rollers 29|] and 296.- Arm 292 is urged downwardly tomaintain tape' 288 taut by means. of a torsion spring 386 carried onpivot pin 294 and engaging arm 292 at a point spaced apart from saidpivot. The ends of tape 298 are joinedto form a loo-p by means of a reeldevice 302 detailed in Fig. 6. It is similar in construction to reeldevice 214 of tape 268, comprising' an attaching member 384 secured toone end of'tape 298, a yoke 305 secured to the attaching member by bolt308, a bolt dit connecting the arms of the yoke and having a nut 3 I 2,and a tubular hub 3 I4 mounted rotatably on bolt BID and on which theopposite end portion of the tape is wound.

The length of tape 298 may be adjusted to any convenient length, such as1 or 11/2 feet, or may be set to correspond to a match or pattern cycleof the paper. The paper is measured as it is withdrawn by counting therevolutions of tape 298. This may be done conveniently by setting thereel device 362 over roller 290 at the start, and counting the number oftimes said reel device passes over said roller.

The operation of the device is substantially as cifcllows: The operatorpushes latches |56 outwardly to release levers |52 and pivots saidlevers upwardly to move cutting roller 6I) away from cutting discs 62.Rods |28 are inserted in the ends of a paper roll 56, discs I 34 servingto square the ends of said roll. Latch levers I I 2 are released andarms IIE) are moved along shafts 92 until they are spaced properly toreceive the rounded ends of rods |28 in sockets |36 thereof. Fineadjustments of the spacing of arms |I0 is made with screws 565. Thepaste rollers are interchangeably arranged to provide an effectivelength just less than the untrimmed width 'of the paper, Cutting discs62 are adjusted to the proper spacing by loosening set screws 232 andmoving carriages 226 along shafts 220. Paper from roll 56 is then leadrearwardly and passedl between cuttting roller Ell and cutting discs 52,and thence upwardly as shown at |66. Levers |52 are then pivoteddownwardly until they are engaged by latches |56, thereby urging cuttingroller 6!) against cutting discs 62. Fine adjustments in the spacing ofthe cutting discs are made with nuts 222. Paste wiper 206 is adjusted asdesired. The paper is then grasped at |66 and pulled upwardly until thedesired length has been trimmed and pasted, after which it is cut offIby operation of treadle 24. If more paper is 1 1 desired than can bewithdrawn with one arm reach, the paper is refolded on itself and moreis withdrawn. Any length of paper up to the ,total length of the rollmay be trimmed and pasted in a single operation.

Thus it is apparent that awallpaper machine havingseveral advantages hasbeen produced. The invention consists not of any means for guiding thepaper, which has been found extremely diicult and impractical, but inthe provision of means forthe prevention of the misguiding of the paperas and after it is withdrawn from the roll, by the pasting and trimmingoperations. To this end, the paste roller has been sectionalized and thesections individually castered the pressure of the paper roll againstthe paste rollers has been equalized at the opposite edges of the paper,the cutting discs have been castered and their cutting pressureequalized. All of these features contribute to the end that the cuttingand pasting means follow the paper, rather than exerting possiblelateral drags on the paper which would result in the papers movingoffcourse. The paper roll itself dominates the course of the paper.Another feature is that the machine may be mounted on stand 2, or may beremoved from the stand simply by removing screws 42, and supported'onany table or bench. In the' latter event, cut-off blade |14 is operatedby hand. Other features are the novel paste wiper 206, and the measuringdevices.

While I have shown a specific embodiment of my invention, it is to beunderstood that the speciiic structure described and shown in thedrawing is to be interpreted as illustrative, and not in a limitingsense. Many minor changes of construction and operation could be madeWithout departing from the spirit of the invention.

WhatI claim is:

`1. In a wallpaper machine of the class described adapted to receive aroll of wallpaper from which paper may `be drawn, a support, a pasteroller carried for rotation by said support, and means carried by saidsupport for supporting said roll oi wallpaper rotatably parallel to andin contact withv a portion of said paste roller, said paste rollercomprising a plurality of axially spaced apart sections, said sectionsbeing interchangeable and of graduated widths whereby the used portionof said paste roller may be adjusted to the width of the paper.

2. In a wallpaper machine of the class described adapted to receive aroll of wallpaper from which paper may be drawn, an opentopped tankadapted to contain paste, a plurality of carriages carried removably ona Wall of said tank for sliding movement therealong, a paste rollercarried for rotation by each of said carriages, said paste rollers beingcarried on parallel axes and longitudinally spaced apart, and meanscarried by said paste tank for supporting said roll of wallpaperrotatably parallel to and in contact with a portion of said pasterollers, said paste rollers being interchangeable and of graduatedwidths whereby the combined widths of the used paste rollers may beadjusted to the width of the paper.

3. In a wallpaper machine of the class described adapted to receive aroll of wallpaper from which paper may be drawn, a support, a pasteroller carried for rotation by said support, and means carried by saidsupport for supporting said roll of wallpaper rotatably parallel to andin contact with a portion of said paste roller, said paste rollercomprising a vplurality of axially spaced apart sections, meansattaching each of said sections to said support for pivotal casteringaction about an axis at right angles to the direction in which paper iswithdrawn from said roll of wallpaper, whereby said paste rollers willalign themselves automatically with the direction of movement of saidpaper.

4. In a wallpaper machine of the class described adapted to receive aroll of wallpaper from which paper may be drawn, a supporta paste rollercarried for rotation by said support. and means carried by said supportfor supporting said roll of wallpaper rotatably parallel to and incontact with a portion of said paste roller, said paste rollei`comprising a plurality of axially spaced apart sections, means attachingeach of said sections to said support for pivotal castering action aboutan axis at right angles to the direction in which paper is withdrawnfrom said roll of wallpaper, whereby said paste rollers will alignthemselves automatically with the direction of movement of said paper,said paste roller sections being interchangeable and of graduated widthswhereby the used portion of said paste roller may be adjusted to thewidth of the paper.

5. In a wallpaper machine of the class described adapted to receive aroll of wallpaper from which paper may be drawn, an open-topped tankadapted to contain paste, ya plurality of carriages carried removably ona wall of said tank for sliding movement therealong a, caster rodcarried by each of said carriages for axial oscillation, said casterrods being substantially parallel, a paste roller carried for rotationby each of said caster rods, the rotational axes of said paste rollersbeing at right angles to said caster rods, said paste rollers beinglongitudinally spaced apart and means carried by said tank for rotatablysupporting said roll of wallpaper parallel to said paste rollers and forurging said paper roll against said paste rollers in a directionlongitudinal to said caster rods.

6. A machine as in claim 5 wherein said paste rollers are of graduatedwidths and wherein said carriages are interchangeable.

'7. A machine as in claim 5 having means whereby said caster rods may bemoved adjustably in a direction parallel to the axes thereof. to adjustthe pressure thereof against said roll of wallpaper. v

8. A machine as in claim 5 wherein certain of said caster rods areflexible and supported adjacent their ends by said carriages, wherebysaid paste rollers are urged resiliently against said roll of wallpaper.

9. A machine as in claim 5 wherein certain of said caster rods areflexible and supported adjacent their ends by said carriages, wherebysaid paste rollers are urged resiliently against said wallpaper roll,and having means for adjusting said caster rods longitudinally in saidcarriages, whereby to adjust the pressureof said paste rollers againstsaid roll of wallpaper.

l0. In a wallpaper machine of the class described, a support, a pasteroller carried for rotation by said support, a pair of coaxial shaftscarried for independent axial oscillation by said support, a radiallyextending arm carried rigidly by each of said shafts, means forsupporting a roll of wallpaper for axial rotation between the free endportions of said arms, said supporting means having rotary anduniversally pivotal connections with said arms and a single springcarried by said support and having an adjustable connection with each ofsaid shafts whereby said shaftsarecaused to turn to urgeisaid paper rollagainst-said paste rollers with equal pressure at both-ends; Y Y w i l1.Aimachineas in claim l0 having-means wherebyv sald `arms Amay belongitudinally adjusted along` said shafts to adjust the spacing betweensaid arms to accommodate a roll of wallpaper of any width. s

12.'A machine as in claim 10 having means whereby said shafts may bemoved longitudinally to adjust the spacing between saidarms. f

"13'. A machne'as iny claim 10` having means whereby said arms may bemoved adiustably along said shafts, and means for moving said shaftslongitudinally, whereby to adjust the spacing between said4 arms.

14. In awallpaper machine of the class described, a support, a pasteroller'carried for rotation by saidsupporta pair of coaxial shaftscarried 4for independent axial oscillation by said support, a radiallyextending armcarried rigidly by;l each of` said shafts, meansforsupporting a rollof wallpaper for axial rotation between the freeendportions of saidarms, a, second arm secured rigidly to each of saidshafts and extending radially therefrom, a connectingbar extending:between the free end portions of said second arms and secured toy eachof said second arms foruniversal pivotal movement, and a torsion lspringcarried by said support and engaging said Y connecting bar at itsmidpoint to turn said shafts to urge said roll of wallpaper resilientlyagainst said paste roller.

15. In a ywallpaper machine of the class described, a support, a pasteroller carried for ro- 14 and extending radially therefrom, said armshaving rounded sockets formed in the confronting surfaces thereof, a'pair of rodsv adapted to be inserted in the ends of a roll of wallpaper;the outer ends of said rods being rounded to engage in said sockets tosupportsaidroll of Walltation by said supporta pair of coaxial shaftscarriedfor independent axial oscillation by said support, a radiallyextending arm carried by each of said shafts, a rod adapted to beinserted infeachiend of a roll of wallpaper, means for connesting' theouterends of said rods to the free .endv portions of said arms forrotary and universal pivotal movement; a; second arm rigidly secured toeach of said shafts and. extending radially therefrom, Aa connecting barextending between and secured'to the'free ends of said second arms foruniversal pivotal movement, and a torsion spring carried by said supportand engaging said connecting bar at its vmidpoint to rotate saidshaftsto urge said -paper roll against said paste roller.

l v16. A machine as in claim 15` having radially expansible resilientmembers secured to'the rods inserted into the ends of the wallpaper;roll,

whereby said rods are securedand centered in fr said paper roll.

17. A machine as in claim 15v wherein the first mentioned arms securedto the shafts are provided with rounded sockets in their confrontingfaces, and wherein the rods inserted in the paper roll are rounded attheirouter ends for engagement in said sockets, whereby said paper rollis supported for rotary and universal pivotal movement relative to saidarms.

18. In a Wallpaper machine of the class described, an open-topped tankadapted to contain a liquid paste, a plurality of paste rollers carriedfor rotation in said tank, said rollers being. axially spaced apart,means for supporting each paste roller independently for pivotal`castering action about an axis at right angles to the rotational axisthereof, a pair of coaxial shafts carried independently by said tankfor` axial oscillation, said shafts being parallel to said pasterollers, an arm fixed to each of said shafts paper parallel to andagainst said paste rollers, va second arm xed to each of said shafts andextending radially therefrom, a connecting bar extending between andsecured looselyto the free end portions of said second arms, anda springcarried by said tank and engaging said connectingbar at its midpoint toapply a torsional load to said shafts to urge said paper roll againstsaid paste rollers in a direction longitudinal of the castering axes ofsaid paste rollers.

`19. A machine as in claim 18 wherein said paste rollers areinterchangeable and of graduated widths, whereby to provide a compositepaste roller of a width cemmensurate with the width of the paper.

20. A machine as in claiml wherein the paste rollers at the oppositeedges of the paper are rigidly supported against movement by thepressure of the paper roll thereagainst, thereby providing a fixed basefor said paper, and having means whereby the `paste rollers disposedintermediate the edge of thepaper'are urged resiliently against 'said'paperroll, and means for adjusting said pressure;

2l. A machine as in claim 18 having means whereby said first mentionedarms are adjustable along said shafts, and means for adjusting=saidshafts longitudinallywhereby to adjust the spacingibetween said arms'.v

22. In a wallpaper. machine of the character described wherein.wallpaper is drawn froma roll carried rotatably by said machine, asupport,A a cutting roller. carried by said support for rotation aboutan axis parallel to said paperroll, and about which said paper ispassed, a pairof ycoaxial shafts carried for axial oscillation bysaidsupport on an axis parallel to said cutting roller, a circular cuttingdisc carried by `each of said shafts for rotation aboutfan-axis parallelto but ..6 each of said shafts, a rocker beam extending between andconnected to the free endportions of said arms for universal pivotalmovement; an operating arm attached to said support for movementrelative` thereto,y said rocker beam being pivoted at its midpoint tosaid operatingvarm on an axis substantially parallel to said arms; andmeans for moving said operating arm transversely to said pivotal axiswhereby equal torsional forces are transmitted to said shafts to urgesaid cutting discs equally against said cutting roller.

23. A machine as in claim 22 wherein the shafts are movablelongitudinally to adjust the spacing between said cutting discs.

24. In a wallpaper machine of the character described wherein wallpaperis drawn from a roll carried rotatably by said machine, a support, acutting roller carried by said support for rotation about an axisparallel to said paper roll, and about which said paper is passed, apair of coaxial shafts carried for axial oscillation by said support onan axis parallel to said cutting roller, a carriage carried foradjustable movement along each of said shafts, a circular cutting disccarried by each of said carriages for rotation about an axis parallel tobut spaced apart from said shafts, a fixed arm extending radially fromeach of said shafts, a

rocker beam extending between and connected t`o the free ends ofsaidarms for universal pivotal movement, an operating arm attached tosaid support for movement relative thereto transversely to said shafts,said rocker beam being pivoted at its midpoint to said operating arm onan axis substantially parallel to said shaft arms, and means for urgingsaid operating arm transversely to said pivotal axis whereby said shaftarms and shafts are turned to urge said cutting discs against saidcutting roller with equal pressure.

25. A machine as in claim 24 wherein said shafts are movablelongitudinally relative to said support and to said rocker beam, wherebyto ad,- just the spacing between said cutting discs.

26. A machine as in claim 24 wherein the cutting discs are carried forpivotal castering action by said carriages about axes substantially atright angles t a tangent to the cutting discs at their points of Contactwith said cutting roller.

27. A wallpaper machine comprising a tank, a plurality of paste rollerscarried for rotation in said tank, said rollers having parallel axes and.being longitudinally spaced, each of said paste rollers beingindependently carried by said tank for pivotal castering action about anaxis transverse to the rotational axis thereof, a pair of coaxial shaftscarried for axial oscillation by said tank parallel to said pasterollers, a first arm fixed to each of said shafts and extending radiallytherefrom, a pair of rods adapted to be inserted in the ends of a rollof wallpaper, the outer ends of said rods being engageable in said rstarms for rotary and universal pivotal movement, whereby said paper rollis supported parallel to and in contact with said paste rollers, asecond arm secured toeach of said shafts and extending radiallytherefrom, a connecting bar extending between and connected to the freeend portions of said second arms for universal pivotal movement, aspring carried by said tank and engaging said connecting bar at itsmidpoint to load said shafts torsionally to urge said paper roll againstsaid paste rollers, a cutting roller about which paper drawn from theroll is led, said cutting roller being carried for rotation by said tankand being parallel to said paper roll, a second pair of coaxial shaftscarried for axial oscillation by said tank parallel to said cuttingroller, a carriage mounted for adjustable movement along each of saidsecond shafts, a cutting disc vcarried rotatably by each of saidcarriages and for pivotal castering action about an axis transverse tothe associated shaft, a xed arm extending radially from each of saidsecond shafts, a rocker beam extendingl between and connected to thefree ends of said last named arms for universal pivotal movement, andmeans carried by said tank for pivotally engaging. said rocker beam atits midpoint and urging said rocker beam transversely to said last namedarms to4 apply torsion to said second shafts to urge said cutting discsagainst said cutting roller.

28. In a wallpaper machine of the class' described, a paste tank, apaste roller carried rotatably in said tank, means carried by said tankfor rotatably supporting a roll of wallpaper parallel to and in contactwith said'paste roller, a roller carried rotatably by said tank parallelto said roll of wallpaper, and about which paper drawn from said roll ispassed, an elongated support member carried for axial oscillation bysaid tank parallel to and in spaced relation from said roller, a pastewiper comprising an elongated resilient strip secured along one edge insaid support and having its opposite edge portion bearing resilientlyagainst said roller,the edgeportion thereof bearing against said rollerhaving a series of generally V-shaped notches formed therein, and meansfor adjustably turning said support whereby a greater or less widthv ofthe paste wiper is caused to bear against said roller.

WILLIAM c. RENNE. l

REFERENCES CITED The following references are of record in ythe file ofthis patent: i

UNITED STATES PATENTS Number Name Date v 422,609 McGraw et al Mar. 4,1890 479,473 Stock July 26, 1892 525,118 Riker Aug. 28, 1894 708,419Sproot Sept. 2, 1902 742,807 Tharp Oct. 27, .1903 742,808 Vogt Oct. 27,1,903 743,989 Phelps Nov.-10, 1903 903,672 Chatelain Nov. 10, 1908929,274 Bauman July` 27, 1909 936,103 Engberg Oct. 5, 1909 944,049Purviance Dec. 2l, 1909 1,133,142 Hirsch Mar. 23, 1915 1,184,284 WakeMay 23, 1916 1,218,728 Beach Jan. 23, 1 917 1,281,178 Lawton Oct. 8,1918 1,547,050 Lalone July 21, 1925 1,672,982 Johnson June 12,19281,812,588 Foster June 30, 1931 1,985,800 Schutz Dec. 25, 1934 2,242,887

Holdgate et al May 20, 1941

